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INCOME TAX (Narrative) (Details) - USD ($)
12 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Jul. 31, 2018
Period over which state capital-based tax will be phased out 7 years    
State and Local Jurisdiction [Member]      
Operating loss carryforwards $ 12,293,000 $ 10,526,000 $ 8,274,000
Domestic Tax Authority [Member]      
Operating loss carryforwards $ 10,341,000 $ 8,404,000